Question 1097011
x^2-12x+60 
vertex x value is -b/2a, b is -12, a is 1
vertex is where x=6
When x=6, f(x)=36-72+60=24
(6, 24) is the vertex.
Positive x^2, so that is a minimum.
{{{graph(300,300,-10,10,-10,60,x^2-12x+60 )}}}